NO117649B

NO117649B -

Info

Publication number: NO117649B
Application number: NO159660A
Authority: NO
Inventors: T Asaeda; K Minamikaito; O Kuse
Original assignee: Tachikawa Res Inst
Priority date: 1964-11-02
Filing date: 1965-09-10
Publication date: 1969-09-08
Also published as: DE1494757A1; US3632723A; GB1082899A; AT283578B; CH497555A; US3632722A; US3632721A; FI43216B; BE671154A; DK120608B; ES319358A1; NL6514182A

Description

Anordning for pneumatisk transport av korn- eller stykkeformig materiale. Device for pneumatic transport of granular or lumpy material.

Denne oppfinnelse vedrører en anordning for pneumatisk transport av korn- eller stykkeformig materiale bestående av en transportvifte og en med denne forbundet og med et innmatningsapparat forsynt transportledning samt en mellom This invention relates to a device for the pneumatic transport of granular or piece-shaped material consisting of a transport fan and a transport line connected to this and equipped with a feeding device and a

transportviften og innmatningsapparatet the transport fan and the infeed device

anbragt og i og for seg kjent, med svevelegeme forsynt volumstrømregulator som er placed and known in and of itself, with floating body provided volume flow regulator which is

bestemt til å redusere luftmengden ved avtagende mottrykk i transportledningen og designed to reduce the amount of air in case of decreasing back pressure in the transport line and

til å øke luftmengden ved økende mottrykk. to increase the amount of air with increasing back pressure.

Derved elimineres en del av de tidligere Thereby, a part of the former is eliminated

ulemper, men fortsatt forekommer risikoen disadvantages, but the risk still occurs

for at transporthastigheten på den ene side so that the transport speed on the one hand

kan bli så stor at ømfintlig materiale, f. can become so large that sensitive material, e.g.

eks. korn, kan skades under transporten, og e.g. grain, can be damaged during transport, and

på den annen side så lav at nødvendig on the other hand, as low as necessary

transporthastighet ikke opprettholdes uten transport speed cannot be maintained without it

at der tross lav belastning samler seg materiale i transportledningen. that, despite low loads, material accumulates in the transport line.

Foreliggende oppfinnelse som går ut på Present invention which is based on

også å eliminere de sistnevnte risikoer, ut-merker seg ved at volumstrømregulatorens also to eliminate the latter risks, stands out in that the volume flow regulator

svevelegeme er således utformet at luftmengden ved økning reguleres henimot en The floating body is designed in such a way that the amount of air is regulated towards an increase

på forhånd bestemt og av volumstrømregu-latorens utførelse avhengig maksimalverdi, maximum value determined in advance and depending on the design of the volume flow regulator,

samt at volumstrømregulatoren er utstyrt and that the volume flow regulator is equipped

med et av svevelegemet påvirket bryteor-gan som ved en bestemt minimal luft-mengde stanser materialinnmatningen. with one of the floating bodies acting as a breaking organ which stops the material feed at a certain minimal amount of air.

For å klargjøre oppfinnelsestanken skal To clarify the idea of invention shall

i det følgende forklares som et eksempel in the following is explained as an example

en anordning for anordningens utførelse. a device for the device's performance.

På tegningen betegner 1 en for transporten anvendt sentrifugalvifte samt 2 en In the drawing, 1 denotes a centrifugal fan used for the transport and 2 a

volumstrømsregulator innkoplet mellom volume flow regulator connected between

viftens utløp og en til materialets innmat-ning tjenende anordning, bestående av en innmatningstrakt 8, et slusehjul 7 med tilhørende motor 6, et trykk-kammer 9, et blandingskammer 11 og et mellom de sistnevnte rom værende luftfordelingsor-gan 10, 12 betegner en fra innmatnings-anordningen utgående transportledning. Den foran nevnte volumstrømsregulator er forsynt med et svevelegeme 3, utført etter svensk patent nr. 133 723 og utstyrt med en styrestang 4. Nær ved stangen 4 er pla-sert et føleorgan 5, eksempelvis en mikro-bryter, som ved en viss på forhånd bestemt stilling hos svevelegemet påvirkes av denne stang for å avbryte materialtilførselen. the outlet of the fan and a device serving for feeding in the material, consisting of a feed funnel 8, a sluice wheel 7 with associated motor 6, a pressure chamber 9, a mixing chamber 11 and an air distribution device 10, 12 located between the latter spaces denotes a from the input device outgoing transport line. The above-mentioned volume flow regulator is provided with a floating body 3, made according to Swedish patent no. 133 723 and equipped with a control rod 4. Close to the rod 4 is placed a sensing device 5, for example a micro-switch, which with a certain beforehand certain position of the floating body is affected by this rod to interrupt the material supply.

I det viste tilfelle påvirker organet In the case shown, the organ affects

drivmotoren 6 for slusehjulet 7. the drive motor 6 for the sluice wheel 7.

Claims

Device for pneumatic transport of granular or lumpy material consisting of a transport fan (1) and a transport line (12) connected to this and equipped with a feed device (7,8) as well as a known in and of itself placed between the transport fan and the feed device, volume flow regulator (2) equipped with a floating body, which is intended to reduce the amount of air in case of decreasing back pressure in the transport line and to increase the amount of air in case of increasing back pressure, characterized in that the volume flow regulator's floating body (3) is designed in such a way that the amount of air is regulated in advance maximum value determined and depending on the design of the volume flow regulator, as well as that the volume flow regulator is equipped with a switch (5) influenced by the floating body which stops the material feed at a certain minimum amount of air.